condition mean min max 4 h after light 5.78382 4.18916 7.37848 8 h after light 7.477025 6.23217 8.72188 12 h after light 4.40348 3.87725 4.92971 4 h after dark 10.18281 6.74362 13.622 8 h after dark 4.7630099999999995 4.35011 5.17591 12 h after dark 6.038885 4.36945 7.70832